Home / 22,279.62-30,745.90-12,208.08

Finding the Fourth Proportional to 22,279.62, 30,745.90 and 12,208.08

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Solution

The fourth proportional to 22,279.62, 30,745.90 and 12,208.08 is: 16,847.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,279.62 : 30,745.90 = 12,208.08 : x
  2. Step 2: Convert to fraction form
    22,279.62/30,745.90 = 12,208.08/x
  3. Step 3: Cross multiply
    22,279.62x = 30,745.90 × 12,208.08
  4. Step 4: Simplify right side
    22,279.62x = 375,348,406.87
  5. Step 5: Solve for x
    x = 375,348,406.87/22,279.62
  6. Step 6: Final answer
    x = 16,847.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.